我们大多数人通常以垂直格式查看我们的智能手机屏幕，除非我们正在观看视频(watching a video)、玩游戏或查看某些高分辨率图像。
不过，与其他设备不同的是，iPhone的一个很酷的地方(cool things about the iPhone)在于，它的屏幕可以根据您握持手机的方式自行调整方向。
但是，有时屏幕不会旋转以匹配您将 iPhone 转动到的一侧，这可能会令人沮丧，并且会使手机更难使用。
在您断定您的手机可能坏了并与(your phone may be broken)Apple Genius预约之前，请阅读本指南以了解它发生的原因以及如何解锁 iPhone 屏幕旋转。
是什么导致iPhone 上的锁定屏幕旋转问题？(Locked Screen Rotation Issue)
理想情况下，您的 iPhone 屏幕应该能够无缝旋转。如果没有，可能是屏幕旋转功能被锁定，或者您所在的屏幕或应用程序可能不支持此功能。
iPhone屏幕旋转问题(screen rotation problems)的主要原因之一是主(Home)屏幕在启动期间的加速度计校准。
iPhone 中的加速度计测量智能手机的加速度，但它的主要工作是检测方向变化并指示 iPhone 的屏幕在上下之间切换或旋转，反之亦然。
如果加速计在启动过程中没有校准，你可以在竖屏模式下重启你的 iPhone，看看它是否会恢复正常。
与内置陀螺仪传感器一起，加速度计可帮助您通过移动 iPhone 来控制游戏，或者如果您正在使用地图应用程序(using the Maps app)，它可以帮助您提供准确的方向。
在横向视图中横向握住 iPhone 会翻转屏幕以匹配方向，这与在纵向视图中竖直握住手机时的方式相同。
您的 iPhone 足够聪明，可以知道您是以纵向（垂直）还是横向（水平）格式握住它，并旋转屏幕以匹配。但是，当加速度计和陀螺仪传感器发生故障时，屏幕可能会在您不希望的时候旋转，这可能会很烦人。
如果您正在为锁定屏幕旋转问题而苦苦挣扎，我们将向您展示如何在您的 iPhone 上找到屏幕旋转并解锁它，以便您可以以首选格式欣赏您的内容。
你如何解锁(Unlock)iPhone屏幕旋转(Screen Rotation)？
在我们进入解锁 iPhone 屏幕旋转的步骤之前，了解手机上的屏幕旋转锁定何时启用非常重要。
如果您的 iPhone 运行的是 iOS 7 及更高版本，则可以通过打开
控制中心(Control Center)来启用屏幕旋转锁定，但是，您可以通过点击手机屏幕顶部电池图标旁边的图标栏来快速执行相同操作。
当旋转锁定图标打开时，它会在电池图标旁边出现一个弯曲的箭头。如果你没有看到它，那么锁是关闭的。
在 iPhone X/XS/XR 和 11 上，您不会在主屏幕上看到旋转锁定图标。您只能在控制中心(Control Center)的右上角看到它。
但是，您可以双击主页按钮，然后在(Home)音乐(Music)播放器控件的右侧找到屏幕旋转锁定/解锁按钮。轻按一下即可解锁，您可以再次旋转屏幕。
以下是在 iPhone 上解锁屏幕旋转的方法：
1.关闭纵向锁定
2.重新启动应用程序/尝试不同的应用程序
3. 重启你的 iPhone
4.禁用显示缩放
5.重置所有设置
6.修复加速度计
关闭纵向方向锁定(Turn Off Portrait Orientation Lock)
如果您尝试将 iPhone 转向一侧并且显示屏卡在纵向，则可能启用了纵向方向锁定。
您可以通过转到控制中心(Control Center)来快速禁用它。您到达那里的方法取决于您使用的 iPhone。
对于 iPhone X，从屏幕右上角向下滑动以打开控制中心(Control Center)。如果您使用的是带有物理主页按钮的 iPhone 8 或更早机型，请从屏幕底部向上滑动以显示控制中心。(Control Center)
在控制中心(Control Center)，找到锁和箭头图标，周围有一条线曲线，如果锁图标显示为高亮背景（白色），则表示它已启用，因此请点击它以禁用纵向方向锁定(Portrait Orientation Lock)。
控制中心(Control Center)顶部会出现一条消息，通知您纵向锁定(Portrait Orientation Lock)
已关闭。
按下主屏幕按钮或从右上角向下滑动返回主屏幕，(Home)然后尝试将 iPhone 侧向转动，看看它是否可以自由旋转。
注意：在较旧的 iOS 版本上，您可以在(Note: )快速应用切换器(Fast App Switcher)中找到旋转锁定功能。要打开它，请双击主页(Home)按钮，然后从左向右滑动。
如果屏幕仍然不旋转，请尝试以下其他解决方案。
重新启动应用程序或(App Or)尝试其他应用程序(Different App)
如果您的 iPhone 屏幕在禁用Portrait Orientation Lock(Portrait Orientation Lock)后仍然不会旋转，则很可能您所在的应用程序或屏幕不支持屏幕的重新定向。您可以尝试几个选项来解决问题，如下所示：
如果应用程序卡住或崩溃，请重新启动应用程序。为此，请通过从主页(Home)栏向上滑动并按住一秒钟以显示该功能来访问应用程序切换器。(App Switcher)对于带有
Home按钮的 iPhone，双击以访问App Switcher。
找到您要关闭的应用程序并在预览中向上滑动。转到主(Home)屏幕，找到该应用程序并再次打开它。如果屏幕旋转问题与应用程序有关，这些步骤应该可以帮助您再次旋转 iPhone 的屏幕。
注意：(Note:)并非所有应用程序都支持屏幕旋转。同样，大多数 iPhone 机型的主屏幕不会旋转，但 iPhone 6/6S/7/8 Plus 机型会旋转。
重启你的 iPhone
还是无法解锁屏幕旋转？问题可能是您 iPhone 上的错误。要解决此问题，请重新启动您的 iPhone，因为这通常会修复可能导致此类问题的任何软件冲突，并检查它是否再次正常工作。
要重新启动 iPhone，请按住侧面(Side)按钮的提高音量或降低音量按钮，直到出现“滑动(Slide)关机”(Off)菜单。如果您的 iPhone 有主(Home)屏幕按钮，您可以按住Sleep/Wake按钮来查看电源菜单。
滑动滑动
关闭(Off)电源滑块以关闭您的 iPhone，然后按Sleep/Wake或侧边(Side)
按钮再次打开它。
您也可以执行强制重启，看看它是否能解决问题。iPhone重新启动后，请检查屏幕方向是否再次起作用。
禁用显示缩放
显示缩放允许您通过放大文本和(Display Zoom)主(Home)屏幕图标来放大 iPhone 屏幕上显示的内容。它仅适用于受支持的机型( only available on supported models)，包括 iPhone 6/7/8 Plus、iPhone XS Max和 iPhone XR。
如果您有这些 iPhone 型号之一带有Display Zoom，它可能会干扰屏幕旋转。要解决此问题，请转到Settings > Display & Brightness显示缩放(Display Zoom)。
在显示缩放(Display Zoom)
部分，点击查看(View)，然后点击Standard>Set。
您的 iPhone 将在新的缩放设置中重新启动，您可以再次检查屏幕是否可以正常旋转。
重置所有设置(Reset All Settings)
如果您此时仍无法解决屏幕旋转问题，您可以重置您的 iOS 设置。这将重置网络设置和WiFi连接等内容，以处理一些错误和怪癖，例如屏幕旋转锁定问题。
要重置所有设置，请打开Settings > General.
接下来，点击重置(Reset)。
点击重置所有设置(Reset all
settings)，然后输入您的密码以确认操作。
您的 iPhone 将重新启动，之后您可以检查屏幕旋转是否再次正常工作。如果没有，您可能必须通过重置(Reset)并点击擦除所有内容和设置(Erase All Content and Settings)来完全重置您的 iPhone 。在执行此操作之前，请备份您的 iPhone，然后使用此选项。
修理加速度计(Repair The Accelerometer)
如果此时屏幕旋转仍无法正常工作，则 iPhone 的加速度计可能已损坏。加速度计在检测 iPhone 的运动时控制屏幕旋转功能。如果它坏了，它就无法正常跟踪移动，甚至不知道何时旋转手机屏幕。
此修复需要专业人士，因此请联系Apple 支持(Apple Support)并为您的 iPhone 设置服务，或访问授权的Apple维修店进行修复。
How to Unlock Screen Rotation on iPhone
Most of us generally view our smartphone screens in vertical format, unless we’re watching a video, playing a game, or viewing certain high-resolution images.
One of the cool things about the iPhone though, unlike other devices, is that its screen can reorient itself based on how you hold the phone.
However, sometimes the screen doesn’t rotate to match the side you turn your iPhone to, which can be frustrating, and makes it harder to use the phone.
Before you conclude that your phone may be broken and book an appointment with an Apple Genius, read this guide to find out why it happens and how to unlock iPhone screen rotation.
What
Causes The Locked Screen Rotation Issue on iPhone?
Ideally, your iPhone
screen should be able to rotate seamlessly. If it doesn’t, it may be that the
screen rotation feature is locked, or, the screen or app you’re on may not
support this function.
One of the major culprits of screen rotation problems on an iPhone is the Home screen’s accelerometer calibration during startup.
The accelerometer in your iPhone measures acceleration in smartphones, but its main work is to detect orientation changes and instruct your iPhone’s screen to switch or rotate between up from down and vice versa.
If the accelerometer
doesn’t calibrate during startup, you can restart your iPhone in portrait mode
and see whether it’ll return to normal.
Together with the built-in gyroscope sensor, the accelerometer helps you control games by moving your iPhone, or if you’re using the Maps app, it helps give you accurate directions.
Holding your iPhone
sideways in landscape view flips the screen to match the orientation, in the
same way it does when you’re holding your phone upright in portrait view.
Your iPhone is smart enough to know that you’re holding it in portrait (vertical) or landscape (horizontal) format and rotates the screen to match. However, when the accelerometer and gyroscope sensors malfunction, the screen can rotate when you don’t want it to, which can be pretty annoying.
If you’re struggling with the locked screen rotation issue, we’re going to show you how to find screen rotation on your iPhone, and unlock it so you can enjoy your content in the preferred format.
How Do You Unlock iPhone Screen Rotation?
Before we get into the
steps you can take to unlock iPhone screen rotation, it’s important to know
when the screen rotation lock on your phone is enabled.
If your iPhone is
running iOS 7 and higher, the screen rotation lock is enabled by opening the
Control Center, but, you can quickly do the same by tapping the icon bar at the
top of your phone’s screen next to the battery icon.
When the rotation lock
icon is on, it’ll appear with a curved arrow next to the battery icon. If you
don’t see it, then the lock is off.
On iPhone X/XS/XR and 11, you won’t see the rotation lock icon on the home screen. You can only see it on the upper right side of the Control Center.
However, you can double-tap the Home button and find the screen rotation lock/unlock button to the right next to the Music player controls. A simple tap will unlock it and you can rotate your screen once more.
Here’s how to unlock
screen rotation on your iPhone:
1. Turn off the portrait orientation lock
2. Restart
the app/Try a different app
3. Restart
your iPhone
4. Disable
Display Zoom
5. Reset
All Settings
6. Repair
the Accelerometer
Turn Off Portrait Orientation Lock
If you’ve tried turning
your iPhone to the side and the display is stuck in portrait, the Portrait
Orientation Lock may be enabled.
You can quickly disable
it by going to the Control Center. The method you use to get there depends on
the iPhone you’re using.
For iPhone X, swipe down
from the upper right corner of your screen to open the Control Center. If
you’re using an iPhone 8 or older model with the physical home button, reveal
the Control Center by swiping up from the bottom of the screen.
From the Control Center,
find the lock and arrow icon with a line curve around it, If the lock icon is
displayed with a highlighted background (white), it means it’s enabled, so tap
it to disable Portrait Orientation Lock.
A message will appear at
the top of the Control Center notifying you that the Portrait Orientation Lock
is off.
Go back to your home
screen by pressing the Home button or swiping down from the top right corner,
and then try turning your iPhone sideways to see if it rotates freely.
Note: On older iOS versions, you can find the rotation lock feature in the Fast App Switcher. To open it, double click the Home button, and swipe from left to right.
If the screen still doesn’t rotate, try the
other solutions below.
Restart
The App Or Try a Different App
If your iPhone screen still won’t rotate after disabling the Portrait Orientation Lock, most likely the app or screen you’re on doesn’t support the reorientation of your screen. You can try a few options to resolve the issue as follows:
Restart the app if it’s
stuck or has crashed. To do this, access the App Switcher by swiping up from
the Home bar and holding for a second to reveal the feature. For iPhones with a
Home button, double-click to access the App Switcher.
Find the app you want to
close and swipe up on the preview. Go to your Home screen, find the app
and open it again. If the screen
rotation issue was with the app, these steps should help you rotate your iPhone’s
screen again.
Note: Not all apps support screen rotation. Similarly, the home screen
on most iPhone models doesn’t rotate, though it does for the iPhone 6/6S/7/8
Plus models.
Restart Your iPhone
Still can’t unlock
screen rotation? The problem may be a bug on your iPhone. To resolve this,
reboot your iPhone as this usually fixes any software conflicts that could be
causing such problems, and check if it works normally again.
To restart your iPhone,
press and hold the Volume Up or Volume Down button with the Side button until
the Slide to Power Off menu appears. If your iPhone has a Home button, you can
press and hold the Sleep/Wake button to view the power menu.
Swipe the Slide to Power
Off slider to power off your iPhone, and then press the Sleep/Wake or Side
button to power it back on again.
You can also perform a
force restart and see if it resolves the problem. Once your iPhone restarts,
check whether the screen orientation works again.
Disable Display Zoom
Display Zoom allows you to magnify what is showing on your iPhone’s screen by making text and the Home screen icons larger. It’s only available on supported models including the iPhone 6/7/8 Plus, iPhone XS Max, and iPhone XR.
If you have one of these iPhone models with Display Zoom, it could be interfering with screen rotation. To resolve the issue, disable Display Zoom by going to Settings > Display & Brightness.
In the Display Zoom
section, tap View and then tap Standard>Set.
Your iPhone will restart in the new zoom setting, and you can check whether the screen can rotate normally again.
Reset All Settings
If you’re at this point
and still can’t fix the screen rotation issue, you can reset your iOS settings.
This will reset things like network settings and WiFi connections to handle
some bugs and quirks such as the screen rotation lock problem.
To reset all settings, open Settings > General.
Next, tap Reset.
Tap Reset all
settings and then enter your passcode to confirm the action.
Your iPhone will reboot, after which you can check if the screen rotation works normally again. If it doesn’t, you’d probably have to reset your iPhone altogether by going to Reset and tapping on Erase All Content and Settings. Before you do this, backup your iPhone and then use this option.
Repair The Accelerometer
If you’re at this point
and screen rotation still won’t work, your iPhone’s accelerometer could be
broken. The accelerometer controls the screen rotation function as it detects
your iPhone’s movement. If it’s broken, it can’t function normally to track
movement thus it won’t even know when to rotate the phone’s screen.
This fix requires a
professional so get in touch with Apple Support and set up service for your
iPhone, or visit an authorized Apple repair store to get it done.
